Delta delivers efficient irrigation to South African farmers

A pumping station powered by Delta CP2000 frequency drives is delivering environment friendly irrigation to a dairy farm in South Africa in an space experiencing irregular and ever reducing rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground nicely pumps and ensure that the water brought to the floor is transferred on to the upper tank.
The dairy farm wanted a pump system to entry ground water from wells and ensure a dependable and cost-effective water provide. The farm’s proprietor commissioned an appropriate system from electrical set up planners, Pienaar Elektries, which specialises in agricultural operations. Following an in-depth planning and session course of, Pienaar Elektries opted for a number of automation products from Delta.
The planned irrigation system comprised two reservoirs at completely different heights, to be crammed with water by a complete of six underground properly pumps in a single day, when the energy costs have been low. A transport pump is used to transfer water from the decrease reservoir to the higher one. The height difference permits the sprinkler system to be operated using gravity alone during the day, making it notably efficient. The livestock and the dairy also can take their water provide from this irrigation system. The key necessities of the venture have been price effectivity and low energy consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground well pumps and ensure that the water delivered to the surface is transferred on to the upper tank. The CP models characteristic a PID controller with feedback that permits the water stage in the tanks and boreholes to be monitored and corrected. This is finished by alternating between the totally different pumps and frequently monitoring the flow. If the borehole stage falls under a minimal predetermined by the person, the PLC control switches to the next the borehole and prevents the pumps from being broken.
The system has numerous Delta DVP sequence programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and keep the water degree above the predetermined worth. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC monitors the water level in the top reservoir and the animal watering stations, whereas a further DVP controller manages the sprinkler installation. Uncharted -machine interfaces (HMI) from the DOP-100 collection are used to show all the processes within the system and show system data and warning indicators on a 7 or 15-in contact screen. In-house software additionally permits the time configuration and power costs to be monitored remotely. Users also can monitor the entire process by way of the DOP-100 VNC server.
The system is now working without any points and provides each livestock and crops with sufficient water, even during periods of low rainfall.

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